Report about DPC spikes and audio stutter in the AMD Ryzen 9950X3D build.
Report about DPC spikes and audio stutter in the AMD Ryzen 9950X3D build.
Hello!
So I've recently switched over to AMD from Intel 14900k.
ROG STRIX X870E-E GAMING WIFI
​
Parts:
BIOS: 1605
CPU: AMD 9950X3D
CPU cooler: NZXT Kraken Elite 360 AIO
Motherboard: X870E ASUS ROG STRIX-E Gaming Wifi
Ram: G.Skill Trident Z5 NEO CL30 60000MHz 64GB EXPO
SSD/HDD: Samsung 990 PRO 2TB
GPU: MSI RTX 4080 Gaming X Trio
PSU: Corsair RM1000e (from Oct 2023)
Chassis: NZXT H7
OS: Windows 11 Home 24H2
Monitor: ASUS PG279Q
After waiting for the Code 15 memory without interrupting it, it landed me on QCODE "D6" after waiting for a few minutes i tried to boot a second time and this time it booted right up. I've found out later this might be an issue with the G Sync display I was using at the time. If i flash BIOS and try with this display it always gives me D6 at first. With my second monitor there is no such issues. Anyways... The computer is working great, all benchmarks are where they should be. no crashes or nothing like that. I've also updated to the newest bios everytime they are available. But im having one annoying issue, that i cannot figure out.
ISSUE:
Everytime I first boot into windows the computer will freeze for like 1, 2 seconds and then recover. the mouse and everything will freeze. This happens if i login and wait for certain programs to launch or i can 100% force it to happen by opening Display Settings right after login. If i do this, then none of the problems will cause this hitch on start up. If the display turns off or computer goes to sleep it will happen again when lauching certain programs like Spotify or Fan Control. (I think this has to do with certain UI elements) Also when this happens it will cause massive DPC spikes and audio cut offs. My friends on Discord have noticed my Shure SM7B connected via Wave XLR will actually distort when this happens. (It will happen even without this device connected). This was not happening on my previous intel build, with the same monitors, same gpu, same displayport cables. But the only way to fix it on this computer is to run HDMI. If im connecting HDMI be it through GPU, Internal Graphics the issue is completly resolved. The only way to fix this issue on DisplayPort is to use:
Custom Resolution Utility and Scaled Resolution Editor by ToastyX and delete all the unused resolutions.
If I do this, then the issue will be completly gone. But i'm still left wondering why this is an issue on this AMD build. When it was completly fine on my Intel. I first thought it was related to the recent NVIDIA driver issues but even reverting back to the oldest drivers for my GPU will not fix the issue.
What ive tried:
All sorts of Nvidia Drivers.
Windows 11, Windows 10 multiple fresh installs.
Multiple Chipset drivers.
Disabling all features not in use (Wifi, USB4, LAN, Bluetooth etc
Disabling all power saving features in bios and windows.
Multiple displays and displayport cable combinations.
Different RAM.
Different GPU (GTX 1060)
DIfferent PSU with both the corsair 12VHPPWR cable or the 3x-4x PCIE with NVIDIA adapter.
Reseating all power connectors on MOBO and PSU.
Disconnecting all USB devices, using different keyboard / mouse.
Only using 1 display with a fresh windows install inbetween. tried both displays with different display cables doing this.
Disabling EXPO
No PBO / Undervolt.
The only way to not have this hitching is:
Safe Mode where NVIDIA Driver is not present.
HDMI Cable either via GPU or internal graphics.
At this point I'm completly lost. I should not have to disable all possible resolutions on my displays.. We are talking about a Ryzen 9 9950X3D so how its hitching because it has to load some resolutions is after boot is beyond me.. At this point im just wondering if there is anyone else out there having these issues, or if im alone.
I really don't want to fork out for a new mobo and have the same issue be present. I would also think that if this was a HW issue then it would cause some sort of BSOD or hard freezes. Computer is "stable", even left it over night doing Aida64.
Sorry for the rant post, any ideas would be greatly appreciated!
🙂
The most straightforward solution is often the right answer.
After trying all other options, focus on testing the remaining components, the mobo and cpu. You don’t need new parts—just bring it to a shop for testing with spare parts.
Welcome to the forums, newcomer!
You’re seeing multiple fresh installs of Windows 11 and Windows 10.
Where did you obtain the installer? Are you installing offline, manually adding all drivers with the latest versions via an elevated command?
For clarity, which BIOS version are you currently using?
New parts to note:
- MOBO: X870E ROG STRIX - E
- CPU: AMD 9950X3D
- RAM: G.Skill Trident Z5 NEO 6000 CL30, 64GB (F5-6000J3040G32GX2-TZ5NR)
- GPU: MSI RTX 4080 Gaming X Trio (from previous build)
When sharing troubleshooting threads, include your full system specifications. List them clearly as:
CPU:
CPU cooler:
Motherboard:
RAM:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
Add the age of the PSU along with its make and model. Also mention any parts you’ve used for troubleshooting.
Nvidia has been experiencing driver issues recently, so consider these steps:
Open BIOS, disable iGPU, use DDU in Safe Mode to remove all GPU drivers (Intel, AMD, Nvidia), then manually install driver version 566.36 as a start. In the installer, right-click the file and select Run as Administrator.
Hello good sir, I've now updated the parts list, sorry about that.
Regarding your questions:
BIOS: I'm using the latest BIOS version, 1605. I attempted to revert to 1512 via the flash bios button on the rear panel (some users report issues with the EZ Flash feature inside the BIOS).
Drivers: I've experimented with skipping OOBE during offline installation and installing all drivers before connecting to the internet. I used both ASUS chipset drivers and the newest AMD driver (566.36), which is ready for studio and games. I also tried NVCleaninstall with and without the "Disable Multiplane Overlay" option. When uninstalling NVIDIA drivers, I always disconnect from the internet and switch to Safe Mode using DDU, connecting back only after installing the new drivers.
IGPU: I keep it disabled for testing purposes, but I did try a fresh offline install with both options enabled or disabled. Removing resolutions via CRU and SRE seems to eliminate stuttering in display settings and reduces DPC latency spikes that previously caused audio issues. I'm unsure about the impact of DisplayPort 1.4 versus lower versions, as my monitor only shows DisplayPort 1.2, but I suspect a DSC issue might be involved. I ordered two VESA-certified DisplayPort cables (DP40, UHBR10) after learning that resolution changes could cause stuttering. Previously, bad cables caused black flickering before; my old build had no such issues. Using two cables separately seems unlikely to be the problem. I haven't encountered any hardware faults with the motherboard under these conditions. System tests show no freezes or BSODs, and all USB ports, including USB 4.0, are functioning properly. I manually set PCI-e devices to correct speeds in BIOS, but tried Gen 3 without success.